What are STDs ? How can they be prevented ?

Ans. 1. STDs are sexually transmitted diseases. 2. STDs spread from an infected person to a healthy person by unprotected
sexual contact. 3. Syphilis, Gonorrhoea, AIDS are some common sexually transmitted
diseases which affect the health of human being. 4. To protect individuals from these STDs, sex education and preventive
measures are necessary. 5. Use of condom protects the individual from STDs.